ImageMagick Fun
The “fun” in the title should be read in your most sarcastic tone of voice… Anyways, one of my professors mailed us a PDF of a scanned document to read (and print out) for the next class. Being that is was scanned in (by what appeared to be the professor literally holding it above a scanner) there was a lot of excess black in the picture.
I don’t know about you, but printing 2 large blocks of solid black, for 22 pages, doesn’t sound like a wise investment of toner. But ah! Why don’t I just crop off the excess part of each page so that just the scanned-in text is visible, and print that out? This has to be easy, right?
Unfortunately it wasn’t as easy as I’d hoped (most of the picture editors that can even handle PDFs can’t print out each layer as a separate page, and there’s no way I’m doing the exact same operation 22 times). ImageMagick looked like the thing I needed, even if it would take some trial-and-error to figure out exactly how much to crop off.
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